Holder for z-eat plates



Feb.. 6, E923.

F, W. KOEHN. HOLDER FOR X-RAY PLATES Fl LED JUNE 4 1 92T LMQW?? 2 SHEETS-SHEET 2 Feb. 6, E923.

F U AKOEHN HOLDER FOR X-RAY` PLATES.

FILED JUNE 4, 1921 2 1 ,assort films instead of plates in their Xfray work, l have provided the upper arm lll with a pair ofvfilm clipsI indicated at 15J-19. l do not limit n'iyself to any particular type of film clip, but will state that l have found .the particular type of clip illustrated in Figures 1l, 5 and 6 to be exceptionally well suited for my purpose. lt will be unnecessary to enter into a detailed description of this clip, as its construction and mode of operation will be made readily apparent by an examination of Figures 4l to 6. The details of this clip per se form no part of my present invention. The X-ray film is supported by clamping the upper edge thereof between the jaws of the spring clips. I nd it is ordinarily sufficient merely to provide film clips upon the upper arm le, since X-ray lms do not have the same tendency to curl as do films used for ordinary photographic purposes. However, the lower edges of the film may, if desired, be held by suitable clips carried upon the lower arm 13, as illustrated.

1 now call particular attentionto a light diffusing device which is an adjunct to the X-ray plate holder of my invention. The light diffuser herein shown consists of a rectangular sheet A of translucent material, such, for instance, as the tracing cloth used by draftsinen. The sheet A is disposed on that side of the plate which faces the win* dow, or other source of light, and is preferably detachably secured to the upper arm 14E. The diffusing sheet is conveniently provided with suitable eyelets co-operating with hooks B-B- The sheet is furthermore conven iently stitched at its lower margin to receive a metal rod C which holds the sheet taut. I have found that the sheet A serves I to diffuse the light over the X-ray plate and renders the same very easy to view and 1nterpret from the surgeons position.

The modification of my invention illustrated in Figures 7 and 8 comprises a substantially l. shaped metal frame 20. The metal brackets 21 extend laterally from the vertical leg of the frame 20 and are secured thereto by welding or by screws or rivets. The brackets 21%21 are preferably hingedly mounted to co-operating fixed brackets 22-22, which are secured to a window frame or other suitable support, The frame 2O carries wood strips 23 and 24 which are suitably mitered together and secured to the frame 20 by screws 24. The strips 9,3 are provided with longitudinal grooves or channels 25 for the reception of the lower and one of the lateral edges of an Xuay plate indicated at 26. This form ofv holder may, withoutadjustment, be used with X-ray plates or various sizes, as indicated. The brackets 2l`2l are preferably so conformed that the frame 2O may be mounted 'with its horizontal arm uppermost.

When the frame is so mounted, an X-ray film may be supported by means of the clips indicated at 27"-27. n

1V hile l have illustrated and. described the X-ray plate holder of my invention as being mounted for swinging movement with respect to the frame of an operating room window, it will, of course, be understood that vthe holder may be suitably mounted upon any suitable support, as for instance, a portable stand or the like.

1 do not limit myself to the details of construction herein shown and described, but wish to claim all equivalent constructions falling within the terms or spirit of the appended claims.

What I claim as new, and desire to secure by Letters Patent of the United States 1s:

1. In combination with a window frame, a supporting skeleton framework for an X- ray plate, said supporting framework comprising a pairA of channeled bars disposed in the same vertical plane, one of said channeled bars adapted to receive the lower edge of an X-ray plate, the other bar adapted to receive another edge of the same plate, each of said bars being joined to the other at one end only, and means for mounting said supporting framework upon the window frame for swinging movement around a vertical axis.

2. An X-ray plate holder comprising a pair of horizontal bars spaced apart in the saine vertical plane, and vertically adjustable, one with respect to the other, said bars being provided with channels adapted to receive the ripper and lower edges of a plate, means for securing said bars in adjusted position, means on said bars for supporting a light diffuser adjacent and parallel to one side of the plate, and means formounting said bars to swing as a unit around a vertical airis.

3. An X-ray plate holder comprising a vertical rod, a pair of vertically spaced horizontal arms pivotally mounted on said rod, one of said arms being vertically adjustable with respect to said rod, channels in said bars adapted to receive the upper and lower edges of a plate, a set screw carried by the vertically adjustable arm, a bar having a longitudinal slot adapted to co-operate with the set screw carried by the vertically adjustable arm, said bar being hired to the other arm.

di. An X-ray plate holder comprising a framework, including channeled members adapted to receive the lower and one other edge of a X-ray plate, means for mounting said framework for swinging movement relative to a window, and a light diffuser comprising a translucent sheet carried by the framework and disposed adjacent and par-'- 5. A device ofthe class described, comg prsng a skeleton framework open at one edge adapted to support an X-ray negative in e vertical plane, a, light diffuser carried by said frzunework, seid diffuser Comprising a translucent sheet adapted to lie adjacent and parallel with one face of the nega tive, and means for mounting said framework for swinging movement about a ver-- tical axis.

'In Witness whereof, I hereunto subscribe my nal/ue this 26 day of May, 1921.

FRED W7. KOEHN. Witnesses HoWE D. DUFF, J. P. WEDDER. 

